Merge pull request #19565 from backstage/rugvip/1820

Switch to Node.js v18 + v20

packages/backend-plugin-manager/src/manager/plugin-manager.test.ts

@@ -277,7 +277,7 @@ describe('backend-plugin-manager', () => {
               {
                 message: `an error occured while loading dynamic backend plugin 'backend-dynamic-plugin-test' from '${location}'`,
                 meta: {
-                  message: 'Unexpected identifier',
+                  message: expect.stringContaining('Unexpected identifier'),
                   name: 'SyntaxError',
                 },
               },

packages/backend-plugin-manager/src/scanner/plugin-scanner.test.ts

@@ -588,7 +588,7 @@ Please add '${path.resolve(
               )}'`,
               meta: {
                 name: 'SyntaxError',
-                message: 'Unexpected token i in JSON at position 0',
+                message: expect.stringContaining('Unexpected token'),
               },
             },
           ],
@@ -622,7 +622,7 @@ Please add '${path.resolve(
               )}'`,
               meta: {
                 name: 'SyntaxError',
-                message: 'Unexpected token i in JSON at position 0',
+                message: expect.stringContaining('Unexpected token'),
               },
             },
           ],